41CL MMU Reset upon serial cable insert/remove

[Monte Dalrymple]

(02-26-2015 03:08 PM)ElectroDuende Wrote:  I don't have a CL, but I suspect where the problem can come from. In a jack type connector, the pins are mis-connected while the jack is inserted (the tip will touch the base and sleeve contacts while traveling inside), so unexpected signals can arrive to the calculator. On the other side, in a DB9 connector a pin will never contact any other one during the connection process.

Yes, I am sure that this is where the issue comes from. The jack/plug combination was chosen solely because it was possible to mount the jack in a blank Port cover. I know it's a kludge, but I wanted to use blank Port covers to hold the connection. I couldn't find a better way to do it inexpensively.